文章详情列表接口 小程序及 模拟器 条数 错误 浏览器正确 调大mysql 查询超时时间 同一接口，小程序环境的TTFB相比浏览器约大5倍。

文章详情列表接口 小程序及模拟器 条数 错误 浏览器正确

【Request Headers】
浏览器

:authority: prod.api.test.com
:method: GET
:path: /grpc/articleWithWholeBody/list/?Limit=200&Offset=0
:scheme: https
accept: application/json, text/plain, */*
accept-encoding: gzip, deflate, br
accept-language: zh-CN,zh;q=0.9
cache-control: no-cache
origin: https://www.test.com
pragma: no-cache
referer: https://www.test.com/
sec-ch-ua: "Chromium";v="92", " Not A;Brand";v="99", "Google Chrome";v="92"
sec-ch-ua-mobile: ?0
sec-fetch-dest: empty
sec-fetch-mode: cors
sec-fetch-site: cross-site
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36

小程序模拟器

Accept: */*
Accept-Encoding: gzip, deflate, br
Cache-Control: no-cache
Connection: keep-alive
content-type: application/json
Host: prod.api.test.com
Pragma: no-cache
Referer: https://servicewechat.com/wx123/devtools/page-frame.html
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: cross-site
User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1 wechatdevtools/1.05.2107090 MicroMessenger/8.0.5 Language/zh_CN webview/

【Response Headers】

浏览器
access-control-allow-headers: *
access-control-allow-origin: *
content-type: application/json; charset=utf-8
date: Wed, 21 Jul 2021 06:47:46 GMT
kratos-status-code: 0
kratos-trace-id

小程序 模拟器
Access-Control-Allow-Headers: *
Access-Control-Allow-Origin: *
Connection: keep-alive
Content-Type: application/json; charset=utf-8
Date: Wed, 21 Jul 2021 06:51:47 GMT
for-weapp-devtools: {"Date":["Wed, 21 Jul 2021 06:51:47 GMT"],"Content-Type":["application/json; charset=utf-8"],"Transfer-Encoding":["chunked"],"Connection":["keep-alive"],"Access-Control-Allow-Headers":["*"],"Access-Control-Allow-Origin":["*"],"Kratos-Status-Code":["0"],"Kratos-Trace-Id":[""]}
Kratos-Status-Code: 0
Kratos-Trace-Id
Transfer-Encoding: chunked

服务端代码打日志发现： 确实不同客户端从mysql取出的数据条数不一致；小程序少取了。

解决办法： 调大mysql

QueryTimeout

时间。

• Waiting (TTFB). The browser is waiting for the first byte of a response. TTFB stands for Time To First Byte. This timing includes 1 round trip of latency and the time the server took to prepare the response.

同一接口，小程序环境的TTFB相比浏览器约大5倍。

MySQL :: MySQL 8.0 Reference Manual :: 5.1.8 Server System Variables https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html

net_read_timeout

Command-Line Format	--net-read-timeout=#
System Variable	net_read_timeout
Scope	Global, Session
Dynamic	Yes
SET_VAR Hint Applies	No
Type	Integer
Default Value	30
Minimum Value	1

The number of seconds to wait for more data from a connection before aborting the read. When the server is reading from the client, net_read_timeout is the timeout value controlling when to abort. When the server is writing to the client, net_write_timeout is the timeout value controlling when to abort. See also replica_net_timeout and slave_net_timeout.